The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Deciphering and Suppressing Over‐Oxidized Nitrogen in Nickel‐Catalyzed Urea Electrolysis
Abstract
Urea electrolysis is a prospective technology for simultaneous H 2 production and nitrogen suppression in the process of water being used for energy production. Its sustainability is currently founded on innocuous N 2 products; however, we discovered that prevalent nickel‐based catalysts could generally over‐oxidize urea into NO 2− products with ≈80 % Faradaic efficiencies, posing potential secondary hazards to the environment. Trace amounts of over‐oxidized NO 3− and N 2 O were also detected. Using 15 N isotopes and urea analogues, we derived a nitrogen‐fate network involving a NO 2−‐formation pathway via OH−‐assisted C−N cleavage and two N 2‐formation pathways via intra‐ and intermolecular coupling. DFT calculations confirmed that C−N cleavage is energetically more favorable. Inspired by the mechanism, a polyaniline‐coating strategy was developed to locally enrich urea for increasing N 2 production by a factor of two. These findings provide complementary insights into the nitrogen fate in water–energy nexus systems.
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Cites
Ni(OH) 2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials
Wang, H., Casalongue, H. S., Liang, Y., & Dai, H. (2010) · Journal of the American Chemical Society · doi:10.1021/ja102267j · Cited by 2,042
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Cited by
Boosting urea electrooxidation on oxyanion-engineered nickel sites via inhibited water oxidation
Gao, X., Bai, X., Wang, P., Jiao, Y., Davey, K., Zheng, Y., & Qiao, S.-Z. (2023) · Nature Communications · doi:10.1038/s41467-023-41588-w · Cited by 306
Synergistic Engineering of Doping and Vacancy in Ni(OH)2 to Boost Urea Electrooxidation
Qin, H., Ye, Y., Li, J., Jia, W., Zheng, S., Cao, X., Lin, G., & Jiao, L. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202209698 · Cited by 281
Self-citationXu, S., Ruan, X., Ganesan, M., Wu, J., Ravi, S. K., & Cui, X. (2024) · Advanced Functional Materials · doi:10.1002/adfm.202313309 · Cited by 264
Circumventing Challenges: Design of Anodic Electrocatalysts for Hybrid Water Electrolysis Systems
Wang, H., Sun, M., Ren, J., & Yuan, Z. (2023) · Advanced Energy Materials · doi:10.1002/aenm.202203568 · Cited by 183
Self-citationHighly selective urea electrooxidation coupled with efficient hydrogen evolution
Zhan, G., Hu, L., Li, H., Dai, J., Zhao, L., Zheng, Q., Zou, X., Shi, Y., Wang, J., Hou, W., et al. (2024) · Nature Communications · doi:10.1038/s41467-024-50343-8 · Cited by 180
Metadata
- Authors
- Li, J., Li, J., Liu, T., Chen, L., Li, Y., Wang, H., Chen, X., Gong, M., Liu, Z., & Yang, X.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-10-22
- Volume
- 60
- Issue
- 51
- Pages
- 26656-26662
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3199271207
- Cited by
- 211
- References
- 1
- FWCI
- 5.23
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, J., Li, J., Liu, T., Chen, L., Li, Y., Wang, H., Chen, X., Gong, M., Liu, Z., & Yang, X. (2021). Deciphering and Suppressing Over‐Oxidized Nitrogen in Nickel‐Catalyzed Urea Electrolysis. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202107886
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